#include <iostream>
using namespace std;
class Base {
public:
    virtual void print() {
        cout << "Base";
    }
};
class Derived : public Base {
public:
    void print() {
        cout << "Derived";
    }
};
int main() {
    Base *ptr = new Derived();
    ptr->print();
    delete ptr;
    return 0;
}